High Rye Bourbon vs Wheated Bourbon

Allspice, nutmeg and cinnamon on one side; sweet oak, vanilla and bright fruit on the other. Four Roses names those baking spices in its description of a rye-heavier bourbon recipe, while Maker’s Mark describes fruit alongside the oak and vanilla in its wheated bourbon. The producers’ notes offer a vivid starting point for the comparison, with the grain recipe telling only part of the story.[2][5]

The central distinction is the grain used alongside corn: rye in high rye bourbon, wheat in wheated bourbon. Both remain bourbon. Neither term is a separate legal category under US federal rules, and neither tells you everything about the finished whiskey.[1][6]

What high rye bourbon and wheated bourbon mean

Corn comes first in both styles. A mash bill is the recipe of grains used to make a whiskey, and US federal law requires bourbon to contain at least 51% corn. It must be distilled at no more than 80% ABV (160 US proof) and stored in charred new oak at no more than 62.5% ABV (125 US proof). Bourbon cannot contain neutral spirits, colouring, flavouring or blending materials.[1]

“High rye” and “wheated” describe choices within that framework. Neither appears as a type in the current text of 27 CFR 5.143. Buffalo Trace explains the wheated approach plainly: its Weller bourbons use wheat instead of rye as the secondary grain.[1][6]

High rye has no established percentage threshold that applies to every bourbon bearing the description. Four Roses offers a useful comparison: it calls its 35% rye mash bill “rye-heavier” and its 20% rye mash bill “lower rye”. Those are the producer’s comparative descriptions, not legal boundaries.[3]

The distinction in bourbon versus rye is firmer. Under US federal rules, rye whiskey requires at least 51% rye, while wheat whiskey requires at least 51% wheat. Wheated bourbon is not wheat whiskey, just as high rye bourbon is not rye whiskey under those definitions.[1]

The grain recipes side by side

Four Roses makes the difference measurable: its B mash bill contains 35% rye against E’s 20%, with corn accounting for most of both recipes. The Maker’s Mark and Weller pages cited here identify their grain choices without giving percentages.[3][4][6]

Moving from E to B adds 15 percentage points of rye and removes 15 percentage points of corn, while malted barley stays at 5%. These are two clearly different grain recipes from one producer using the same terminology.[3]

Even the rye-heavier recipe is predominantly corn. Its 35% rye content does not make it rye whiskey: the US legal threshold for that type is at least 51% rye.[1][3]

The wheated examples allow a comparison of grain choice, but not proportions. Maker’s Mark identifies soft red winter wheat, while Buffalo Trace identifies wheat as Weller’s secondary grain. Those statements do not establish matching percentages, so the recipes should not be treated as interchangeable.[4][6]

What the producers say about flavour

“Spicy versus sweet” is too blunt a distinction. The producers’ descriptions are more revealing, with spice and sweetness appearing across both sides of the comparison.[2][5][6]

Rye and baking spice

Four Roses describes OBSK, made with its B mash bill, as having a nose “dominated by aromas of rich, clean rye and hints of lighter baking spices”. It names allspice, nutmeg and cinnamon. Its description of the lower rye E mash bill specifies “less rye spice than the higher-rye B mashbill”.[2][3]

That gives a clear rye-spice comparison within Four Roses’ range. The particular spices and their intensity belong to those recipes, rather than to every bourbon described as high rye.[2][3]

Wheat, fruit and soft spice

Maker’s Mark describes its nose as “Sweet oak, vanilla, bright fruit and wheat” and its palate as “Sweet, with a balance of oak, vanilla and fruity essences”. The finish includes “pleasant soft spice”. In the producer’s words, it is “a softer, sweeter style without the burn and bite”.[5]

Buffalo Trace describes W.L. Weller Special Reserve as having “A sweet nose with a presence of caramel”, followed by “honey, butterscotch and a soft woodiness”. The finish has “a sweet honeysuckle flair”. These are Buffalo Trace’s tasting notes, rather than notes from a tasting conducted for this article.[6]

Read together, the descriptions show why the named whiskey matters. “Wheated” identifies the grain choice; the tasting notes describe what each producer finds in an individual bourbon. They do not define a universal wheat flavour.[5][6]

Why grain alone cannot predict the result

Two mash bills, ten recipes

Four Roses says it combines two mash bills with five proprietary yeast strains to create ten bourbon recipes. Its published figures give the mash bills 20% and 35% rye. Documented, producer's account.[2][3]

The producer's OBSK account describes the ten recipes, while its OESK account gives the grain percentages. The accounts checked are dated 8 May and 9 October 2020; the fact sheet does not establish the earliest source. Both were last checked on 5 November 2026.

Two mash bills become ten recipes: a clear demonstration that the grain recipe is not a complete flavour specification. The same mash bill can appear in several recipes.[2]

How participants grouped the whiskeys

A university report describes a 2016 sorting study in which 21 participants were more likely to group five bourbons and five rye whiskeys by brand than by type. Documented.[7]

Washington State University News reports the sample and grouping result. The source used here is that university news report, dated 28 April 2016, rather than the research paper. The fact sheet does not establish the earliest source. The report was last checked on 5 November 2026.

The study compared bourbon with rye whiskey, not wheated with high rye bourbon. Its finding is specific: the category distinction did not determine how those participants grouped those ten whiskeys. It does not settle which of these two bourbon styles is more distinctive or establish that grain never matters.[7]

The practical lesson is straightforward. Use the mash bill to understand what went into the whiskey, then read the individual producer’s description for what it says emerged. The recipe and the tasting notes answer different questions, and both are useful.[2][3][5][6][7]

Barrel entry strength is not a separate style rule

Both styles share the same US legal maximum barrel entry strength: 62.5% ABV (125 US proof). Replacing rye with wheat does not change that limit.[1]

Barrel entry strength and bottling strength describe different stages. Maker’s Mark lists its classic bourbon at 45% ABV (90 US proof), and W.L. Weller Special Reserve is also listed at 45% ABV (90 US proof). Those figures describe the finished bottlings, not the strength at which the spirit entered its barrel.[4][5][6]

When reading technical descriptions, keep three things separate: grain percentages describe the recipe, barrel entry strength describes the spirit when stored, and bottling strength describes the finished product. The comparison of cask strength and standard strength explores that last distinction in more detail.

How to use the comparison when choosing

Start with flavour, not a supposed quality ranking. Set the three quoted producer descriptions alongside each other: OBSK’s allspice, nutmeg and cinnamon; Maker’s Mark’s bright fruit, vanilla and soft spice; Weller Special Reserve’s caramel, honey and butterscotch. Ask which description most appeals, rather than deciding that all high rye bourbon must be spicy or all wheated bourbon must taste alike.[2][5][6]

If tasting them, use those descriptions as points of comparison. Note whether the baking spices, fruit or caramel stand out to you, and where your impressions differ from the producer’s account. Each description belongs to a particular whiskey or recipe, not a promised flavour for the whole style.

Then check what the producer discloses. Four Roses’ published 35% rye figure tells you more than an unqualified high rye description. A statement that wheat replaces rye is useful too, but it supplies no percentage where none is published.[3][6]

Keep your own comparison equally precise. Record the named whiskey, its disclosed recipe and its bottling strength separately. Writing only “rye” or “wheat” loses the distinction between a grain choice and the particular bourbon in the glass.

Common mistakes

Assuming wheated means mostly wheat. Bourbon still requires at least 51% corn under US federal rules; wheat whiskey requires at least 51% wheat.[1]

Treating high rye as a regulated percentage band. The cited federal standard sets no threshold for the term. Four Roses’ figures describe its recipes, not a boundary for other producers.[1][3]

Turning one tasting note into a style rule. Four Roses’ cinnamon and Maker’s Mark’s fruit describe named whiskeys or recipes, not guaranteed results from rye or wheat.[2][5]

Where to go next

• Bourbon vs Rye: distinguish a bourbon containing rye from rye whiskey.
• Cask Strength vs Standard Strength: separate bottling strength from grain recipe.
• Kentucky Bourbon vs Bourbon: explore a distinction based on origin rather than secondary grain.

Sources

[1] Office of the Federal Register, eCFR. 27 CFR 5.143 Whisky, text current on 3 November 2026.
https://www.ecfr.gov/api/versioner/v1/full/2026-11-03/title-27.xml?part=5&section=5.143

[2] Four Roses Distillery. Featured Recipe: OBSK, 8 May 2020. Producer’s account.
https://fourrosesbourbon.com/blog/featured-recipe-obsk

[3] Four Roses Distillery. Featured Recipe: OESK, 9 October 2020. Producer’s account.
https://fourrosesbourbon.com/blog/featured-recipe-oesk

[4] Maker’s Mark. How It’s Made, undated page, checked November 2026. Producer’s account.
https://www.makersmark.com/distillery/how-its-made

[5] Maker’s Mark. Maker’s Mark, classic bourbon product page, undated, checked November 2026. Producer’s account and tasting notes.
https://www.makersmark.com/bourbons/makers-mark

[6] Buffalo Trace Distillery. W.L. Weller Special Reserve, undated page, checked November 2026. Producer’s account and tasting notes.
https://www.buffalotracedistillery.com/our-brands/w-l-weller/w-l-weller-special-reserve.html

[7] Washington State University News. Scott Weybright and Lauren Ingeno, Bourbon or rye? You can't tell the difference, says study, 28 April 2016. University news report of sensory research.
https://news.wsu.edu/2016/04/28/bourbon-rye-cant-tell-difference-says-study

This desk research comparison uses the site’s verified fact sheet, distinguishing federal production rules, producers’ published recipes and tasting notes, and a university report of sensory research.

Last checked: November 2026